:root {
  --bg: #0f1420;
  --bg-elevated: #161d2e;
  --border: #232c42;
  --text: #e8ecf6;
  --text-muted: #8b93ab;
  --accent: #4f8cff;
  --accent-soft: rgba(79, 140, 255, 0.15);
  --success: #33d17a;
  --danger: #ff5c6c;
  --warning: #ffb454;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

/* [hidden] her zaman kazanmalı; aksi halde .app/.modal gibi sınıflardaki
   "display" kuralları hidden özniteliğini geçersiz kılabilir. */
[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  font-size: 30px;
}

.brand h1 {
  margin: 0;
  font-size: 18px;
}

.subtitle {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--text-muted);
}

.ws-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}

.dot-off {
  background: var(--danger);
}

.dot-on {
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.content {
  flex: 1;
  padding: 24px 28px 48px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.stat-card {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-value {
  font-size: 26px;
  font-weight: 600;
}

.stat-value-danger {
  color: var(--danger);
}

.panels {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 22px;
}

@media (max-width: 960px) {
  .panels {
    grid-template-columns: 1fr;
  }
}

.panel-card {
  padding: 18px 20px 22px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.panel-header h2 {
  margin: 0;
  font-size: 15px;
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th {
  text-align: left;
  color: var(--text-muted);
  font-weight: 500;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.empty-row {
  color: var(--text-muted);
  text-align: center;
  padding: 18px;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}

.badge-active {
  background: rgba(51, 209, 122, 0.15);
  color: var(--success);
}

.badge-ended {
  background: rgba(139, 147, 171, 0.15);
  color: var(--text-muted);
}

.badge-error {
  background: rgba(255, 92, 108, 0.15);
  color: var(--danger);
}

.live-feed {
  max-height: 420px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feed-item {
  padding: 8px 10px;
  border-radius: 8px;
  background: rgba(79, 140, 255, 0.06);
  border: 1px solid var(--border);
  font-size: 13px;
}

.feed-item .feed-meta {
  color: var(--text-muted);
  font-size: 11px;
  margin-bottom: 3px;
}

.feed-item.role-user {
  border-left: 3px solid var(--accent);
}

.feed-item.role-assistant {
  border-left: 3px solid var(--success);
}

.feed-item.type-error {
  border-left: 3px solid var(--danger);
}

/* ---------------------------------------------------------------------- */
/* Giriş ekranı                                                            */
/* ---------------------------------------------------------------------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 30px;
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-align: center;
}

.brand-icon-big {
  font-size: 44px;
}

.login-card h1 {
  margin: 0;
  font-size: 18px;
}

.login-card label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  text-align: left;
}

.login-card input,
.login-card select,
.login-card textarea,
#settings-form input,
#settings-form select,
#settings-form textarea,
.modal-card input,
.modal-card select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 9px 10px;
  font-size: 13px;
  font-family: inherit;
}

.login-card input:focus,
#settings-form input:focus,
#settings-form select:focus,
#settings-form textarea:focus,
.modal-card input:focus,
.modal-card select:focus {
  outline: none;
  border-color: var(--accent);
}

.error-text {
  color: var(--danger);
  font-size: 12px;
  margin: 0;
}

.btn-primary {
  background: var(--accent);
  border: none;
  color: #fff;
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary:hover {
  filter: brightness(1.08);
}

.btn-primary:disabled,
.btn-secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-block {
  width: 100%;
}

/* ---------------------------------------------------------------------- */
/* Sekmeler                                                                 */
/* ---------------------------------------------------------------------- */
.tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.tab-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
}

.tab-btn:hover {
  color: var(--text);
}

.tab-btn.active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.current-user {
  font-size: 13px;
  color: var(--text-muted);
}

.tab-panel {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

/* ---------------------------------------------------------------------- */
/* Formlar (Ayarlarım, kullanıcı yönetimi)                                  */
/* ---------------------------------------------------------------------- */
#settings-form,
#sip-settings-form,
.modal-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

#settings-form fieldset,
#sip-settings-form fieldset {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

#settings-form legend,
#sip-settings-form legend {
  padding: 0 6px;
  font-size: 13px;
  color: var(--accent);
}

#settings-form label,
#sip-settings-form label,
.modal-card label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 12px;
  color: var(--text-muted);
}

.checkbox-label {
  flex-direction: row !important;
  align-items: center;
  gap: 8px !important;
}

.checkbox-label input {
  width: auto;
}

.hint-text {
  font-size: 12px;
  color: var(--text-muted);
  margin: 4px 0;
}

.key-status {
  font-size: 11px;
  color: var(--text-muted);
}

.panel-card {
  padding: 18px 20px 22px;
}

.panel-card h2 {
  margin-top: 0;
}

.agent-controls {
  display: flex;
  gap: 10px;
  margin: 10px 0;
  flex-wrap: wrap;
}

.room-info {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.log-viewer {
  background: #05070c;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  max-height: 360px;
  overflow-y: auto;
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ---------------------------------------------------------------------- */
/* Modal                                                                    */
/* ---------------------------------------------------------------------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 15, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.modal-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
  max-width: 380px;
}

.modal-card h3 {
  margin-top: 0;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 6px;
}

.actions-cell {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}